1. With even more patented Technologies, The newly designed X-Bionic 4.0 Product generation provides the Decisive impetus for outstanding performance. Innovative technologies optimally equip your feet to withstand The specific stresses of Marathon Running. 2. Air-conditioning Channel 4.0 guides fresh air to the sole Of The foot and ensures a pleasant feel-good climate. Unlike its predecessor, the channel that's integrated into the fabric is narrower at the top and increases the airflow rate. Air Guide technology and the Traverse Airflow Channel System provide additional ventilation. 3. In the perfected model of the X-Bionic 4.0 Generation, the Lamberts-Nicholson Achilles Tendon Protector 4.0 Protects even more effectively against pressure, friction and impact with its shape-optimized padding structures. 4. Supination bandage also Keeps long-distance runners' Feet stabilized and ready for fatigue-free performance.
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